diff options
Diffstat (limited to 'plugins/Comet/CometPlugin.php')
| -rw-r--r-- | plugins/Comet/CometPlugin.php | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/plugins/Comet/CometPlugin.php b/plugins/Comet/CometPlugin.php new file mode 100644 index 000000000..2e0bb40a4 --- /dev/null +++ b/plugins/Comet/CometPlugin.php @@ -0,0 +1,180 @@ +<?php +/** + * Laconica, the distributed open-source microblogging tool + * + * Plugin to do "real time" updates using Comet/Bayeux + * + * PHP version 5 + * + * LICENCE: This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * @category Plugin + * @package Laconica + * @author Evan Prodromou <evan@controlyourself.ca> + * @copyright 2009 Control Yourself, Inc. + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://laconi.ca/ + */ + +if (!defined('LACONICA')) { + exit(1); +} + +/** + * Plugin to do realtime updates using Comet + * + * @category Plugin + * @package Laconica + * @author Evan Prodromou <evan@controlyourself.ca> + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://laconi.ca/ + */ + +class CometPlugin extends Plugin +{ + var $server = null; + + function __construct($server=null) + { + $this->server = $server; + + parent::__construct(); + } + + function onEndShowScripts($action) + { + $timeline = null; + + $this->log(LOG_DEBUG, 'got action ' . $action->trimmed('action')); + + switch ($action->trimmed('action')) { + case 'public': + $timeline = '/timelines/public'; + break; + case 'tag': + $tag = $action->trimmed('tag'); + if (!empty($tag)) { + $timeline = '/timelines/tag/'.$tag; + } else { + return true; + } + break; + default: + return true; + } + + $scripts = array('jquery.comet.js', 'json2.js', 'updatetimeline.js'); + + foreach ($scripts as $script) { + $action->element('script', array('type' => 'text/javascript', + 'src' => common_path('plugins/Comet/'.$script)), + ' '); + } + + $action->elementStart('script', array('type' => 'text/javascript')); + $action->raw("$(document).ready(function() { updater.init(\"$this->server\", \"$timeline\");});"); + $action->elementEnd('script'); + + return true; + } + + function onEndNoticeSave($notice) + { + $this->log(LOG_INFO, "Called for save notice."); + + $timelines = array(); + + // XXX: Add other timelines; this is just for the public one + + if ($notice->is_local || + ($notice->is_local == 0 && !common_config('public', 'localonly'))) { + $timelines[] = '/timelines/public'; + } + + $tags = $this->getNoticeTags($notice); + + if (!empty($tags)) { + foreach ($tags as $tag) { + $timelines[] = '/timelines/tag/' . $tag; + } + } + + if (count($timelines) > 0) { + // Require this, since we need it + require_once(INSTALLDIR.'/plugins/Comet/bayeux.class.inc.php'); + + $json = $this->noticeAsJson($notice); + + // Bayeux? Comet? Huh? These terms confuse me + $bay = new Bayeux($this->server); + + foreach ($timelines as $timeline) { + $this->log(LOG_INFO, "Posting notice $notice->id to '$timeline'."); + $bay->publish($timeline, $json); + } + + $bay = NULL; + } + + return true; + } + + function noticeAsJson($notice) + { + // FIXME: this code should be abstracted to a neutral third + // party, like Notice::asJson(). I'm not sure of the ethics + // of refactoring from within a plugin, so I'm just abusing + // the TwitterApiAction method. Don't do this unless you're me! + + require_once(INSTALLDIR.'/lib/twitterapi.php'); + + $act = new TwitterApiAction('/dev/null'); + + $arr = $act->twitter_status_array($notice, true); + $arr['url'] = $notice->bestUrl(); + $arr['html'] = htmlspecialchars($notice->rendered); + + $profile = $notice->getProfile(); + $arr['user']['profile_url'] = $profile->profileurl; + + return $arr; + } + + function getNoticeTags($notice) + { + $tags = null; + + $nt = new Notice_tag(); + $nt->notice_id = $notice->id; + + if ($nt->find()) { + $tags = array(); + while ($nt->fetch()) { + $tags[] = $nt->tag; + } + } + + $nt->free(); + $nt = null; + + return $tags; + } + + // Push this up to Plugin + + function log($level, $msg) + { + common_log($level, get_class($this) . ': '.$msg); + } +} |